Use the below snippet code to GAC .net 2.0 DLLs using Combination of GACutil and PowerShell.

$filepath=’D:\DLLS\’

$files=Get-ChildItem -Path $filepath -Recurse -filter *.dll

$gacUtilLocation = "D:\gacutil\gacutil.exe"; # give the GACutil exe Location

$files | foreach-object {

Write-Host “Adding” $_.FullName

$asm = [System.Reflection.Assembly]::LoadFile($_.FullName)

$command = “&`”{0}`”/nologo /i `”{1}`”” -f $gacUtilLocation,$_.FullName

invoke-expression $command

}

Regards,

Chaitanya

Use the below snippet code to check the version of the DLLs.

$filepath=’D:\DLLS\’

$files=Get-ChildItem -Path $filepath -Recurse -filter *.dll

foreach($file in $files)

{

$version = [System.Reflection.Assembly]::ReflectionOnlyLoadFrom($file.FullName).ImageRuntimeVersion;

echo "$($file) is using Framework: $version"

}

Regards,

Chaitanya

Often if any issue happens, then we have to check what happened to service by checking the event viewer logs.

We can check the event viewer log data by searching keywords using below command

Get-EventLog -LogName $Appname -Newest 10 -Message "*$EventMessage*"

You can do it in multiple servers using invoke-command

Invoke-command -computername server1,server2 -scriptblock{Get-EventLog -LogName $Appname -Newest 10 -Message "*$EventMessage*" }

It internally uses PowerShell remoting.

You can use the below method to search data . but it uses dcom protocol to connect and search data

Get-EventLog -ComputerName $Server -LogName $Appname | Where-Object { $_.Message -like "*$($EventMessage)*"}|select -First 10 *

What if we want to search servers parallelly.

workflow parallelEventCheck {

param(

[String[]]$ComputerName,

[string]$EventMessage,

[string[]]$ApplicationList

)

foreach –parallel ($Appname in $ApplicationList)

{

inlinescript{

Get-EventLog -LogName $Using:Appname -Newest 10 -Message "*$Using:EventMessage*"

}

}

}#parallelEventCheck

parallelEventCheck -PSComputerName `

Server1,Server2

-EventMessage Error `

-ApplicationList ‘Application’,’System’ |out-gridview

The DCOM will run 5 in parallel by default.

The WSMAN will run 32 in parallel by default.

Using DCOM Method:

workflow parallelEventCheck {

param(

[String[]]$ComputerName,

[string]$EventMessage,

[string[]]$ApplicationList

)

foreach –parallel ($CN in $ComputerName)

{

Write-Warning "Computer is $CN"

foreach –parallel ($Appname in $ApplicationList)

{

Write-Warning "AppName is $AppName"

InlineScript

{

Get-EventLog -LogName $Using:Appname -Newest 100 -Message "*$Using:EventMessage*" -CN $Using:CN |

Select MachineName,* -EA 0

}

}#ApplicationList

}#Computername

}#parallelEventCheck

parallelEventCheck -ComputerName Server1, Server2-EventMessage error -ApplicationList System

Regards,

Chaitanya

Hi All,

Below is the PowerShell code for Bulk installing MSIs in a server

$MSIArray=get-childitem -Path ‘D:\MSIs\’ -Recurse -Filter *.msi # Folder where your MSIs present.

$LogFilepath=”D:\MSIs\Logs’

if(!(Test-Path $LogFilepath))

{

New-Item -ItemType directory -Path $LogFilepath

}

foreach ( $MSI in $MSIArray)

{

$MSISourcePath=$MSI.fullname

$AppName=$MSI.BaseName

$AppLogFilepath=$LogFilepath+"\"+$AppName+".txt"

$Ilist =

@(

"/I `"$MSISourcePath`"", # Install this MSI

"/QN", # Quietly, without a UI

"/L*V `"$AppLogFilepath`"" # Verbose output to this log

)

$InStallStatus =Start-Process -FilePath "msiexec" -ArgumentList $Ilist -Wait

}

You can install the MSIs by executing the above script.

Regards,

Chaitanya

Hi All,

Below is the PowerShell code for Creating Folder Structure based on Existing Directory Structure

workflow parallelCopy {

param([string]$from,[string]$to_dest,[string[]]$ExcludeContent)

$DirArr = @()

$DirArr = Get-ChildItem -Path $from -Exclude $ExcludeContent

foreach –parallel ($dir in $DirArr)

{

inlinescript{

Write-Host "Creating Folder: $($Using:dir.Name)"

Copy-Item $($using:dir.fullname) $using:to_dest -Recurse -Force -Exclude $using:ExcludeContent

}

}

}

$SourceDirectory = Read-Host "Please enter Source Folder"

$DestDirectory = Read-Host "Please enter Destination Folder"

$ExcludeContent = @("*.txt","*.edi","*.PS1","*.xml","*.Zip",”Folder2”) # exclude the folders and file types if you don’t want that

parallelCopy -from $SourceDirectory -to_dest $DestDirectory -ExcludeContent $ExcludeContent

it will create the folders parallelly as we use work flows here.

Regards,

Chaitanya

Hi All,

Below is the PowerShell code to extract the base64 certificates based on thumbprint

cd Cert:\CurrentUser\my

$Cert = Get-ChildItem | where{ $_.Thumbprint -eq "thumbprint" }

$out = New-Object String[] -ArgumentList 3

$OutputFile = "C:\Work\Base64Certificate.CER"

$out[0] = "